Solid product static brake for solid block chemical dispensers

• US 5,194,230 A
• Filed: 12/02/1991
• Issued: 03/16/1993
• Est. Priority Date: 12/02/1991
• Status: Expired due to Term

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab, Inc.
• Inventors: PeKarna, Matthew D., Grandprey, Greg M., Boche, Daniel K., Lavorata, John M.
• Primary Examiner(s): Warden, Robert J.
• Assistant Examiner(s): Collins, Laura E.
• Application Number:
  US07/801,693
• Time in Patent Office: 470 Days
• Field of Search: 422/263, 422/266, 422/274-276, 422/278, 422/102, 422/104, 222/630, 222/637, 239/315, 239/316, 211/50, 211/51, 248/500, 248/510, 248/316.7, 248/523
• US Class Current: 422/263
• CPC Class Codes: A47L 15/4436 in the form of a detergent solution made by gradually dissolving a powder detergent cake or a solid detergent block
• CPC Class Codes: B01F 21/22 using additional holders in conduits, containers or pools for keeping the solid material in place, e.g. supports or receptacles

Abstract

A solid product static brake (10) is provided which is employed in cast solid chemical block dispensing systems for slowing a generally downward gravitationally driven movement of the solid chemical block when placed or installed in a chemical dispenser. The brake provides the ability to prevent the destruction of the cast solid during installation due to mechanical shock. The static brake comprises a horizontal base frame (12), and a plurality of rigid blade members (18) extending from the base frame in a generally perpendicular direction. When a new solid block is installed, the blade members contact and slow the solid block as it falls into the dispenser.

Claims

1. A static brake for slowing the generally downward gravitationally driven movement of a solid chemical block composition when placed in a dispenser, said static brake comprising:

(a) a horizontal base frame defining a perimeter and a central opening therein;

(b) a plurality of rigid blade members extending from said horizontal base frame in a generally perpendicular direction to said horizontal base frame, said blade members rigidly attached to said horizontal base frame;

wherein said blade members have an inwardly directed tapered edge extending from said perimeter of said horizontal base frame into said opening.

2. The static brake of claim 1, wherein said static brake is made of a metallic substance.

3. The static brake of claim 2, wherein said static brake is made of stainless steel.

4. The static brake of claim 1, wherein said tapered edge of said blade members is formed with a taper angle of about 60°

to about 85°

.

5. The static brake of claim 1, wherein said horizontal base frame comprises a portion of a housing of a solid block chemical dispenser.

6. The static brake of claim 1, comprising four blade members, each blade member having a triangular tapered edge and a support member.

7. A solid block chemical dispensing system, comprising:

(a) a dispenser for dispensing an aqueous chemical solution to a utilization point from a solid block chemical composition, said dispenser comprising;

(i) a housing having an inner surface and an outer surface, said housing defining a substantially enclosed inner cavity comprising a storage portion and a collector portion, said housing also defining an upwardly disposed access port;

(ii) a flat horizontal screen support mounted in the storage portion of said housing; and

(iii) a spray nozzle mounted on said inner surface of said housing; and

(b) a static brake disposed within said housing of said dispenser above said screen support for slowing the generally downward gravitationally driven movement of a solid block chemical composition when placed in the inner cavity of said dispenser, said static brake comprising;

(i) a horizontal base frame defining a perimeter and a central opening therein; and

(ii) a plurality of rigid blade members extending from said horizontal base frame in a generally perpendicular direction to said horizontal base frame, said blade members rigidly attached to said horizontal base frame, said blade members having an inwardly directed tapered edge extending from said perimeter of said horizontal frame into said opening;

wherein said static brake prevents a solid block chemical composition from striking said screen support mounted in the storage portion of said housing when said solid block is placed in said dispenser.

8. The dispensing system of claim 7, wherein said spray nozzle is mounted in the storage portion of said housing on the inner surface of said housing.

9. The dispensing system of claim 7, wherein said spray nozzle is mounted in the collector portion of said housing below said screen support on the inner surface of said housing.

10. The dispensing system of claim 7, wherein said dispenser further comprises a door operatively engaged to the hosing and positioned across the upwardly disposed access port.

11. The dispensing system of claim 7, wherein said dispenser further comprises a plurality of lip members protruding from the inner surface of said housing for supporting a container having a solid block chemical composition within the container.

12. The dispensing system of claim 7, wherein said static brake is made of a metallic substance.

13. The dispensing system of claim 12, wherein said static brake is made of stainless steel.

14. The dispensing system of claim 7, wherein said tapered edge of said blade members is formed with a taper angle of about 60°

to about 85°

.

15. The dispensing system of claim 7, wherein said static brake comprises four blade members, each blade member having a triangular tapered edge and a support member.

16. A solid block chemical dispensing system, comprising:

(a) a dispenser for dispensing an aqueous chemical solution to a utilization point from a solid block chemical composition, said dispenser comprising;

(i) a housing having an inner surface and an outer surface, said housing defining a substantially enclosed inner cavity comprising a storage portion and a collector portion, said housing also defining an upwardly disposed access port;

(ii) a flat horizontal screen support mounted in the storage portion of said housing; and

(iii) a spray nozzle mounted on said inner surface of said housing; and

(b) a static brake disposed within said housing of said dispenser above said screen support for slowing the generally downward gravitationally driven movement of a solid block chemical composition when placed in the inner cavity of said dispenser, said static brake comprising a plurality of rigid blade members attached to said housing inner surface, said blade members having a support member and a triangular tapered edge extending inwardly from said inner surface;

wherein said static brake prevents a solid block chemical composition from striking said screen support mounted in the storage portion of said housing when said solid block is placed in said dispenser.

17. The dispensing system of claim 16, wherein said dispenser further comprises a plurality of lip members protruding from the inner surface of said housing for supporting a container having a solid block chemical composition within the container.

18. The dispensing system of claim 16, wherein said static brake is made of a metallic substance.

19. The dispensing system of claim 16, wherein said static brake is made of stainless steel.

20. The dispensing system of claim 16, wherein said blade members are formed with a taper angle of about 60°

to about 85°

.

21. A method of dispensing a chemical solution to a utilization point from a solid block chemical composition disposed in a container having an open face and covered by a lid, comprising the steps of:

(a) removing a lid from a container;

(b) inverting the container over an upwardly disposed access port of a dispenser such that an open face of the container is down, said dispenser comprising a housing defining an inner cavity having a storage portion and a collector portion, said dispenser having a static brake for slowing the downward gravitationally directed movement of a solid block when it is released from said container into said dispenser, said static brake disposed within said housing on a flat horizontal screen support, said static brake comprising;

(i) a horizontal base frame defining a perimeter and a central opening therein;

(ii) a plurality of rigid blade members extending from said horizontal base frame in a generally perpendicular direction to said horizontal base frame, said blade members rigidly attached to said horizontal base frame, said blade members having an inwardly directed tapered edge extending from said perimeter of said horizontal base frame into said opening;

(c) allowing the solid block to fall from the container as a single unit into the dispenser, said solid block sliding downwardly against said blade members which stop said solid block before it reaches said screen support; and

(d) spraying water upon the solid block, thereby dissolving the chemical in contact with the water which then passes through the screen support to the collector portion of the housing and is directed to a utilization point.

22. The method of claim 21, wherein said container having an open face surrounds and is in contact with said solid block on all but one surface thereof, the cross-sectional area of the open face sufficient to allow passage of the entire solid block therethrough.

23. The method of claim 21, wherein upon insertion of the solid block into the dispenser, the solid block is separated from the container and inserted into the dispenser through the access port and retainably held by said blade members of said static brake at least about 2 inches above said horizontal screen support.

24. The method of claim 21, wherein said solid block comprises a cast solid detergent block.

25. The method of claim 24, wherein said solid block comprises a cast solid warewash or laundry detergent composition.

26. The method of claim 21, wherein said solid block comprises a concentrated solid lubricant composition.

27. The method of claim 26, wherein said solid lubricant is a conveyor lubricant.

28. The method of claim 21, wherein said static brake is made of a metallic substance.

29. The method of claim 28, wherein said static brake is made of stainless steel.

30. The method of claim 21, wherein said tapered edge of said blade members is formed with a taper angle of about 70°

to about 80°

.

31. The method of claim 21, wherein said static brake comprises four blade members, each blade member having a triangular tapered edge and a support member.

32. A method for slowing the generally downward gravitationally driven movement of a solid chemical block composition when placed in a dispenser, comprising the step of disposing a static brake in a dispenser, said static brake comprising:

(a) a horizontal base frame defining a perimeter and a central opening therein; and

(b) a plurality of rigid blade members extending from said horizontal base frame in a generally perpendicular direction to said horizontal base frame, said blade members rigidly attached to said horizontal base frame, said blade members having an inwardly directed tapered edge extending from said perimeter of said horizontal base frame into said opening;

wherein said tapered edge of said blade members contacts and penetrates the solid chemical block to slow the generally downward movement of the solid chemical block.

33. The method of claim 32, wherein said static brake is made of a metallic substance.

34. The method of claim 33, wherein said static brake is made of stainless steel.

35. The method of claim 32, wherein said tapered edge of said blade members is formed with a taper angle of about 60°

to about 85°

.

36. The method of claim 32, wherein said horizontal base frame comprises a portion of a housing of a solid block chemical dispenser.

37. The method of claim 32, wherein said static brake comprises four blade members, each blade member having a triangular tapered edge and a support member.